Spectrographs with astigmatism compensation • SOL instruments

IMAGING spectrographs with astigmatism correction

SOL instruments presents a line of spectrographs with astigmatism compensation and the highest image quality along the whole field, it is ideally suitable for multichannel spectroscopy and a wide range of other tasks. The SL100M device is a simple and compact lens spectrograph designed for operation in ultraviolet, visible and near-infrared spectral regions, with a micrometer screw providing the wavelength scanning. The NP250-2 device is a unique spectrograph with two independent channels featuring a possibility of grating change and automated wavelength tuning. The NP250-2M model – a manually controlled two-channel spectrograph with astigmatism correction, optimized for operation with CCD-based detectors.

SL100M

Optical scheme: horizontal-symmetric configuration with two objectives
Astigmatism compensation: yes
Independent spectral channels: 1
F/number (entrance): 1/3.3
Focal length: 99.3 mm
Stray light (20 nm from laser line): 9 х 10^-4
Horizontal magnification: 1.2 nm
Distinctive features: simple, compact, light weight, high optical throughput

NP250-2

Optical scheme: modified Hill scheme with two spectral channels and parabolic mirrors
Astigmatism compensation: yes
Independent spectral channels: 2
F/number (entrance): 1/4.2
Focal length: 270 mm
Stray light (20 nm from laser line): 2.5 х 10^-5
Horizontal magnification: 1.09 nm
Features: possibility of grating change and automated wavelength tuning

NP250-2M

Optical scheme: modified Hill scheme with two spectral channels and parabolic mirrors
Astigmatism compensation: yes
Independent spectral channels: 2
F/number (entrance): 1/4.2
Focal length: 270 mm
Stray light (20 nm from laser line): 2.5 х 10^-5
Horizontal magnification: 1.09 nm
Features: optimized for operation with CCDs, high spatial resolution along the slit height